Display apparatus and operating method thereof

Inactive Publication Date: 2017-04-13
RAYDIUM SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a display apparatus and operating method that can reduce the size of data storage space and increase the color changes in the displayed frame to solve issues in prior art. It uses a specific compression method to compress display data and stores it in a small memory, reducing the necessary size of memory and data transmission power. This results in a more efficient display image that requires less resources and improved quality.

Problems solved by technology

However, with the increasing of the resolution of the display, the capacity of the frame RAM (or the frame buffer) needed and the area of the display driving IC will also become larger.
In addition, the manufacturing process of the display driving IC will also become more advanced and complicated due to the needs of higher memory density.
These factors will cause the largely increasing of the costs of the display driving IC.
However, this also means that the RAM-Less driving IC has to continuously obtain new display data from the data source.
However, the biggest drawback is that high compression led to a substantial decline in the quality of the display image, when the panel display the frame, only two colors can be displayed in the entire display area at the same time, as shown in FIG. 1, so that the colors displayed on the panel will be too monotonous and the panel will fail to provide the display image having good quality.

Method used

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Embodiment Construction

[0023]A preferred embodiment of the invention is a display apparatus. In this embodiment, the display apparatus is a liquid crystal display which can be applied to any electronic apparatus as monitor. As shown in FIG. 2, the display apparatus 2 includes a display panel 20 and a driving IC 22, and the driving IC 22 is coupled to the display panel 20, but not limited to this.

[0024]In practical applications, the entire display area of the display panel 20 can be divided into a plurality of sub-display areas and a number, a shape, an area size and an arrangement of the plurality of sub-display areas can be elastically adjusted without any specific limitations.

[0025]As shown in FIG. 2, the entire display area of the display panel 20 can be divided into (M*N) sub-display areas Z11˜ZMN, wherein M and N are positive integers.

[0026]In detail, in view of the horizontal direction, the entire display area of the display panel 20 can be divided into N rows of sub-display areas along the horizont...

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Abstract

A display apparatus and operating method thereof are disclosed. The display apparatus includes a display panel and a driving IC. A display area of the display panel is divided into sub-display areas. The driving IC is coupled to the display panel. The driving IC includes registers corresponding to the sub-display areas respectively. The driving IC receives a display data and obtains a plurality of color information corresponding to the sub-display areas respectively according to the display data, and then stores the plurality of color information in the registers respectively. When the frame display by the display panel has not to be refreshed, the driving IC stops receiving the display data and converts the plurality of color information stored in the registers into corresponding colors respectively and outputs them to the sub-display areas of the display panel to display.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]This invention relates to a display apparatus, especially to a display apparatus and operating method thereof capable of reducing the size of data storage space and increasing the color changes in the displayed frame.[0003]2. Description of the Prior Art[0004]In general, the conventional display driving IC includes a frame RAM (or a frame buffer). When the frame displayed by the panel needs not to be refreshed, the display driving IC will stop receiving new display data from the data source, and the only thing that the display driving IC needs to do is to access and output the display data previously stored in the frame RAM (or the frame buffer). Therefore, it can achieve the effects of saving the data transmission power.[0005]However, with the increasing of the resolution of the display, the capacity of the frame RAM (or the frame buffer) needed and the area of the display driving IC will also become larger. In additio...

Claims

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Application Information

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IPC IPC(8): G09G3/20G09G3/36
CPCG09G3/3611G09G3/2003G09G2320/0686G09G2330/022
InventorLI, HUNGLIN, FENG-LIHSIAO, SHUA SHEN
OwnerRAYDIUM SEMICON